MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and the overall structure indicate a likely spearphishing attachment used to lure victims to these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e3a7fcbb4c---wovikiguxejaviselanawof.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143971bcc679---kokonusotilisutonejupi.pdf
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/61397210869.pdf
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145789c6bc6c---zenaralavamoriwutagipimuj.pdf
- http://studioingtassinari.eu/userfiles/files/dobenotemewidikiviripumaz.pdf
- https://drrajanmahtani.com/userfiles/files/61189103761.pdf
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/papegidadexezasa.pdf
- http://infas.cz/images/wiswig/file/dazuxapuji.pdf
- https://gancza-yacht.pl/userfiles/file/delijokatezupaxad.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d19004d3fb---lirununabupavopa.pdf
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/833234595.pdf
- http://noxsun.com/jingkelun/userfiles/files/20210912171045.pdf
- https://kocarbonag.com/luutru/files/20637012933.pdf
- http://atenngo.com/admin/sites/site/documents/tegetifikovotagigil.pdf
- https://waxparadise.pl/userfiles/file/sezilisidisasovok.pdf
- http://gyn-ordi.at/myPix/file/xawelesopokelewebitepi.pdf
- https://groupburuemas2.com/contents/files/sixijapodekapulu.pdf
- http://zamaro.info/images/fcke_files/file/vevipatebiwozepisawub.pdf
- http://mezon.jp/userfiles/file/pilududiruzuv.pdf
- http://architettoannalisatinelli.it/userfiles/files/31314237099.pdf
- http://mrpennarak.com/user_file/file/86231626134.pdf
- http://tatnhapkhau.com/ckfinder/userfiles/files/84801506485.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a8d3ec8bfc4b227ba3467879cfe0327f/gibegefuxusuwemudemazek.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=android+location+services+settings
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b56c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB56C | 16792 bytes |
font_01_sfnt_off0000cd83.bin86ad4044f76735aed682d9e882c0501682cda079a9cca53c8933f869efe93128 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD83 | 10592 bytes |
font_02_sfnt_off0000e5a1.binbbdf346c0c3c65b72d58efdca025ba87abf41155f177a80141eade98928db6e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5A1 | 18652 bytes |
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